User profiles for Yuelyu Ji

Yuelyu Ji

University of Pittsburgh
Verified email at pitt.edu
Cited by 82

Prediction of covid-19 patients' emergency room revisit using multi-source transfer learning

Y Ji, Y Gao, R Bao, Q Li, D Liu, Y Sun… - 2023 IEEE 11th …, 2023 - ieeexplore.ieee.org
The coronavirus disease 2019 (COVID-19) has led to a global pandemic of significant
severity. In addition to its high level of contagiousness, COVID-19 can have a heterogeneous …

Mitigating the risk of health inequity exacerbated by large language models

Y Ji, W Ma, S Sivarajkumar, H Zhang, EM Sadhu… - npj Digital …, 2025 - nature.com
Recent advancements in large language models (LLMs) have demonstrated their potential
in numerous medical applications, particularly in automating clinical trial matching for …

Reasoningrank: Teaching student models to rank through reasoning-based knowledge distillation

Y Ji, Z Li, R Meng, D He - arXiv preprint arXiv:2410.05168, 2024 - arxiv.org
Reranking documents based on their relevance to a given query is critical in information
retrieval. Traditional reranking methods often focus on improving the initial rankings but lack …

Rag-rlrc-laysum at biolaysumm: Integrating retrieval-augmented generation and readability control for layman summarization of biomedical texts

Y Ji, Z Li, R Meng, S Sivarajkumar, Y Wang… - arXiv preprint arXiv …, 2024 - arxiv.org
This paper introduces the RAG-RLRC-LaySum framework, designed to make complex
biomedical research understandable to laymen through advanced Natural Language Processing (…

Assertion detection large language model in-context learning lora fine-tuning

Y Ji, Z Yu, Y Wang - arXiv preprint arXiv:2401.17602, 2024 - arxiv.org
In this study, we aim to address the task of assertion detection when extracting medical
concepts from clinical notes, a key process in clinical natural language processing (NLP). …

Memory-Aware and Uncertainty-Guided Retrieval for Multi-Hop Question Answering

Y Ji, R Meng, Z Li, D He - arXiv preprint arXiv:2503.23095, 2025 - arxiv.org
Multi-hop question answering (QA) requires models to retrieve and reason over multiple
pieces of evidence. While Retrieval-Augmented Generation (RAG) has made progress in this …

Assertion detection in clinical natural language processing using large language models

Y Ji, Z Yu, Y Wang - 2024 IEEE 12th International Conference …, 2024 - ieeexplore.ieee.org
In this study, we aim to address the task of assertion detection when extracting medical
concepts from clinical notes, a key process in clinical natural language processing (NLP). …

Towards accurate and clinically meaningful summarization of electronic health record notes: A guided approach

Z Luo, Y Ji, A Gupta, Z Li, A Frisch… - 2023 IEEE EMBS …, 2023 - ieeexplore.ieee.org
Clinicians are often under time pressure when they review patients’ electronic health
records (EHR), therefore, there are great benefits to providing clinicians high-quality …

Transfer learning with clinical concept embeddings from large language models

Y Gao, R Bao, Y Ji, Y Sun, C Song, JP Ferraro… - arXiv preprint arXiv …, 2024 - arxiv.org
Knowledge sharing is crucial in healthcare, especially when leveraging data from multiple
clinical sites to address data scarcity, reduce costs, and enable timely interventions. Transfer …

Curriculum Guided Reinforcement Learning for Efficient Multi Hop Retrieval Augmented Generation

Y Ji, R Meng, Z Li, D He - arXiv preprint arXiv:2505.17391, 2025 - arxiv.org
Retrieval-augmented generation (RAG) grounds large language models (LLMs) in up-to-date
external evidence, yet existing multi-hop RAG pipelines still issue redundant subqueries, …